Terhi 4110 User manual

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Inoducti
This owner’s manual has been compiled for you as the new
owner of a Terhi ABS boat. We thank you for your choice,
and we hope that your boat will meet with your expecta-
tions. This 12-page manual has been prepared to assist you
in the safe and problem-free use of your boat. It contains
information on the use and care of your boat. We urge you
to read the manual carefully and fully acquaint yourself with
your boat before you start to use it.
If this is your first boat, or you are changing to a type of boat
that is not as familiar to you as your previous one, begin by
acquiring handling and operating experience in conditions
that are as safe as possible, before launching and taking re-
sponsibility for passengers.
KEEP THIS MANUAL IN A SAFE PLACE, AND GIVE IT TO THE
NEXT OWNER IF YOU SELL THE BOAT.

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Ctents
Introduction ................................................... 1
Contents.......................................................... 2
Before you set out......................................... 3
Prevailing weather conditions and weather
forecast ....................................................... 3
Bailing ............................................................... 3
Drain plugs........................................................ 3
Load Capacity.................................................... 3
Fuel 3
Engine and other equipment ............................. 3
The minimum onboard equipment.................... 3
Securing of gear ................................................ 3
Charts................................................................ 3
Setting out ........................................................ 3
1 General......................................................... 4
1.1 Certification................................................. 4
1.2 Construction of a Terhi boat ........................ 4
1.3 Basic information about ABS plastic ............. 4
1,4 Warranty...................................................... 4
1.5 Insurance..................................................... 4
1.6 Registration ................................................. 5
2 Using the boat ........................................... 5
2.1 Mooring and anchoring............................... 5
2.2 On-shore storage......................................... 5
2.3 Installation of steering console and rails ....... 5
2.4 Fire extinguisher .......................................... 5
2.5 Driving ........................................................ 6
2.6 Engine ......................................................... 6
2.7 Emergency switch........................................ 6
2.8 Refuelling .................................................... 6
2.9 A Bilge pump............................................... 6
2.10 Retro-fitting ............................................... 7
3 Electrical system......................................... 7
3.1 Main switch................................................. 7
3.2 Battery hook-up and placement................... 7
3.3 Control panel .............................................. 8
3.4 Wiring diagrams .......................................... 8
3.5 Fuses ........................................................... 9
3.6 Navigation lights ......................................... 9
4 Maintenance and winter storage ............ 9
4.1 Washing and cleaning..................................9
4.2 Winter storage........................................... 10
4.3 Engine and other equipment ..................... 10
4.4 Anti-fouling ............................................... 10
4.5 Care and maintenance............................... 10
4.6 Repairs....................................................... 11
5 Transport................................................... 11
5.1 Trailer transport ......................................... 11
5.2 Using your boat for towing........................ 12
5.3 Launching & Recovery............................... 12
6 Technical specifications........................... 12
6.1 General set-up, dimensions and capacities,
design categories....................................... 12
Design categories: ........................................... 12
Declaration of conformity ......................... 14

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Read through this manual. Tell your family and/or
friends where you are going. Also let them know if
you change your plans! Before setting out, always
check the following:
Prevailing weather conditions and weather
forecast
Take wind, waves and visibility into account. Is the
boat size, its equipment and your level of skill suf-
ficient for the body of water onto which you are
heading?
Bailing
If necessary, bail out the boat with a bailer or a
hand pump, not by tipping the water out. Tipping
causes unnecessary strain on the boat’s gunwales.
If the boat is ashore, open the drain plug.
Drain plugs
Before you set out, remember to check that the
drain plugs are fitted and secure.
The Terhi 475 differs from other Terhi boats as
it is equipped with a bilge drain plug, located un-
der the plastic cover beneath the fuel tank. Bilge
water can be drained out through here, when the
boat is in dry dock. Always keep this plug closed
when the boat is in the water.
Load Capacity
Observe the recommendations on the manufac-
turer’s plate: do not overload the boat, distribute
loads evenly, and ensure that all passengers are
wearing life jackets. Always remain seated in the
boat!
Fuel
Check that the boat has sufficient fuel for the an-
ticipated trip. Take reserve fuel for adverse weather
conditions or other unforeseeable circumstances.
Engine and other equipment
Check the operation of the steering and electri-
cal equipment and make a daily inspection of the
engine. Further instructions can be found in the
separate engine manual. Check the boat’s seawor-
thiness, ensuring that there are no faults such as
fuel- or water leaks.
The minimum onboard equipment
should include:
- life jacket for each passenger
- bailing device: pump or bailer
- oars or a paddle
- anchor and rope
- navigation lights for night boating
- for registered boats, equipment required by
registration such as a fire extinguisher.
Securing of gear
Check that all objects on board are stowed in such
a way that they remain secure even in rough seas
and high wind. Keep your boat in good order.
Charts
Unless you are boating in a very familiar area,
check that you are carrying charts covering the
entire area into which you area heading.
Setting out
Before departure, inform each crew member of
their specific task. Check that the mooring rope
and other lines do not get tangled in the propeller
during departure or mooring.
Befe y set t

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The warnings and notes contained in this manual
are specified as follows:
WARNING!: Must be observed to avoid personal
injury.
NOTE!: Must be observed to avoid damage to the
boat or its parts. Terhi boats conform to the stand-
ards set in sections 1 and 2 of the Finnish Boating
Regulations 152/69.
1.1 Certification
Terhi boats are inspected and certified according to
the EU Recreational Craft Directive 94/25/EC. The
CE mark is printed on the manufacturer’s plate,
attached to the side of the engine well. All Terhi
boats are certified for either for Category C or D
(see chapter 6.1 Design Categories).
WARNING!: Always consider your own driving
skill, your speed and direction, if you have to set
off into conditions exceeding the design specifica-
tions of your boat.
1.2 Construction of a Terhi boat
The durability and safety of a Terhi boat is based
on an extremely rigid and strong sandwich con-
struction. The shells are moulded from ABS plas-
tic sheets. The space between the shells is filled
with closed-cell, water-resistant polyurethane
foam. The foam firmly adheres to both shells in a
foam press with a pressure of over 30,000 kg/m².
Thanks to its construction, it is impossible to sink a
Terhi boat, even by cutting it into pieces.
1.3 Basic information about ABS plastic
ABS is an acronym for acrylonitrine, butadiene
and styrene, its three constituents. The most suit-
able and durable ABS qualities, and the special
plastics used as coatings, have been selected on
the basis of research carried out in co-operation
with the Technical Research Centre of Finland.
These plastics are characterised by their high im-
pact strength. Thanks to this strength, ABS plastic
is flexible and will not easily fracture in such as
situations as running aground. The ABS plastic
used is also UV-protected.
ABS does not absorb water, so there is no need
to worry about scratches made by stones on the
shore. Osmosis damage (blistering) cannot occur
on an ABS boat. The properties of all thermoplas-
tics vary to some degree depending on the am-
bient temperature. The high impact resistance of
ABS may be adversely affected by severe frost, but
it is unlikely that you would set to sea in such con-
ditions. This fact must, however, be remembered
if you are intending to move your boat in winter.
Another notable feature of thermoplastics is
that their shape might become deformed under
prolonged pressure on a small area. If, for exam-
ple, you leave your boat in the sun, in such a way
that most of its weight is resting on a small stone,
an indentation may appear at that point after a
few weeks. This fact must be borne in mind if you
are storing your boat on a shore cart, trailer or
winter storage trestles and when you are trans-
porting it. A half-metre long piece of board is suf-
ficient to distribute the point loads.
NOTE! The use of floor mats as anti-slip or floor
protection is forbidden, as they can damage the
sandwich construction of the boat when they
warm up in the sun.
1,4 Warranty
A four-year warranty, effective from the date of
sale is valid for raw material and manufacturing
defects on Terhi boats. The warranty conditions
approved by the manufacturer can be found on
the warranty certificate delivered with this man-
ual. Read these conditions carefully. A condition
of the warranty is that the warranty certificate is
returned filled out in accordance with the manu-
facturer’s warranty conditions. Keep the purchas-
er’s part of the warranty certificate in a safe place.
Please consult your dealer in any possible matters
related to warranty.
1.5 Insurance
Boat insurance may compensate for damage
caused in the water, when transporting or stor-
ing. In some countries under certain circumstances,
small boats may be covered by home insurance.
1 Genal

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2 Using the boat
2.1 Mooring and anchoring
Always moor your boat with care even in sheltered
anchorages, as weather conditions can change
rapidly. The cockpit of an unloaded Terhi boat is
designed to drain rainwater. So, when unloaded,
the boat can be left to float without its drain plug
fitted, allowing rainwater to flow out.
NOTE!: Remember to replace the drain plug when
you step into the boat or load it. Ensure that the
drain plug hole is free from foreign objects such as
leaves. Depending on the weight of the engine and
any other equipment in the boat, water may not
necessery completely drain out of the boat when
the plug is open. If water has remained in the boat
for a long period, it is advisable to clean the surfaces
immediately after draining (see section 4.1).
NOTE! Where necessary, use sufficiently large fend-
ers to prevent scratching the sides of the boat.
2.2 On-shore storage
If the boat is stored on a stony beach, we recom-
mend the use of a roller slipway or hose slipway,
as shown in figure 1.
If the shore is soft sandy or muddy soil, you can
simply pull your boat directly onto the land. Re-
member to lock the engine in the ‘up’ position
before bringing the boat ashore.
WARNING! Do not try to stop the boat by hand.
Do not put your hands or feet between the boat
and the quay, the shore or another boat. First
practice berthing in good weather conditions. Use
prudent but purposeful engine throttle.
NOTE! The water run-off channels around the
boat’s hatches do not function as designed if the
boat is stored at a steep angle, either lengthways
or sideways, for example, when pulled to the
shore. If the angle is too steep, water can collect in
the boat’s storage spaces or electrical equipment.
2.3 Installation of steering console and rails
Installation instructions for the steering console
and rails are included in each package. By observ-
ing these instructions, you will achieve the best re-
sults. The steering wheel and system must be CE-
certified. This can only be guaranteed if original
Terhi parts are used. Always consult your dealer if
you are inexperienced in installing items.
2.4 Fire extinguisher
Boats with a maximum allowable engine power
of 26 kW (35 hp) or more must be equipped with
a fire extinguisher. For Terhi boats, this applies to
the Terhi 475 models where the fire extinguisher
is mounted on the side of the steering console.
Fire extinguishers fitted on boats must be serviced
More detailed information about different insurance
options is available from insurance companies.
1.6 Registration
In accordance with boating regulations in many
countries, boats powered by an outboard motor
exceeding 15kW (20 hp) may need to be regis-
tered before use. Registration can normally be
Figure 1
done by post. Detailed instructions on registration
and its requirements can be obtained from your
local administrative court. Often a registered boat
may only be driven by persons over the age of 15.
In some countries, it is mandatory for even small
boats to be registered. Check with the local au-
thorities in your country of residence for the statu-
tory regulations concerning boat registration.

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annually. Read the user and maintenance instruc-
tions that are supplied with the device.
2.5 Driving
The trim angle of a boat has a significant effect on
driving characteristics and fuel consumption. The
trim angle can be adjusted by load re-distribution
and adjusting engine trim angle.
A correct trim angle in conjunction with a suit-
able speed makes driving enjoyable and safe, even
in a swell.
WARNING! High speed and sudden steering
movements, especially in high seas, may result in
loss of control of the boat and excessive heeling
angles. Always consider your own driving skill,
your speed and direction, if you have to set off
into conditions exceeding the design specifica-
tions of your boat.
WARNING! Observe the recommendations on
the manufacturer’s plate concerning the maxi-
mum permitted number of passengers and maxi-
mum load.
WARNING! At high speeds, adjust the engine trim
angle with care, as it will greatly change the be-
haviour of the boat. Do not drive with the bow too
low, otherwise the boat might turn unexpectedly.
Water will drain from all planing Terhi models,
when the drain plug is opened during planing.
WARNING! Close the plug as soon as the boat
is empty of water, otherwise water will flow back
into the boat when you reduce speed. In the boat,
be careful when moving on surfaces not covered
with anti-slip tapes.
2.6 Engine
If your boat is equipped with an engine, familiar-
ise yourself with its operation by reading the en-
gine manual. When installing the engine, please
observe the instructions supplied by the engine
manufacturer and your Terhi dealer. If your boat
is to be left idle for a longer period of time, switch
off the power from the main switch, if your boat
has one.
WARNING! Observe the recommendations on
the manufacturer’s plate concerning the maxi-
mum motor power and weight.
NOTE! Do not use the main switch to cut the
electric current when the engine is running, as
this may damage the charger.
2.7 Emergency switch
All the newest models of outboard motor have
an emergency switch. Check the location of the
emergency switch and read the user instructions
in the engine manual. The switch is usually used
with a cotter-type coupler and a lanyard. Care-
fully attach one end of the lanyard to your wrist or
clothing, and the other end to the engine’s emer-
gency switch.
WARNING! A spinning propeller can be fatal for a
man overboard or swimmer. Stop the engine when-
everaswimmerorwater-skierisgettingintotheboat.
When you are boating alone, it is especially impor-
tant that the boat will stop if you fall overboard or
trip over in the boat. Under such circumstances,
use the emergency switch if your engine has one.
2.8 Refuelling
It is best to refuel at the quay or on shore to pre-
vent fuel from spilling into the boat. Fuel and oil
splashes must be wiped immediately from the sur-
faces of the boat. Hazardous materials and objects
(e.g. sparking devices or flares) must not be stored
in the tank storage compartment.
WARNING! Before you start refuelling, stop the
engine.
2.9 Bilge pump
The bilge pump is fitted as standard on Terhi
475 and Nordic 6020 C Models. In Terhi 475 the
pump is located in the bilge under the reat seat
and in Terhi Nordic 6020 C in the draining well in
front of the rear seat. The switch is on the control
panel of the steering console.
NOTE! Check the operation of the bilge pump at
regular intervals. Clean the pump’s suction holes
of foreign objects.

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WARNING! The bilge pump is not designed to
cope with leaks caused by running aground or
other accidents.
2.10 Retro-fitting
In order to attach Terhi’s own accessories, the
sandwich construction comprises plywood sup-
port pieces under the shell in the attachment
points. If you wish to fit other accessories, please
observe the following instructions: Drill a hole in
the shell (e.g. an Ø2mm hole for an Ø4.8mm
screw) and wipe the surfaces. Add MS Polymer
sealing adhesive on the piece and fasten it with
acid proof screws. Do not over-tighten.
NOTE! The method described above is only suit-
able for attaching light-weight components, such
as a log or depth finder.
In order to facilitate the drawing of the cables
from the engine to the steering console, there are
two drawstrings in the installation tube.
3 Elecical system
3.1 Main switch
A main electrical isolator switch is standard on Terhi
4110, Terhi Nordic 6020 C (with steering console)
and Terhi 475 models. On the 475 the main switch
is located under the rear seat. The Terhi 4110 and
Terhi Nordic 6020 C boats have their main switch
on the steering console.
The electrical system of Terhi boats is switched
on when the key is turned in a clockwise direc-
tion and locked in position. The key is then in an
upright position.
When leaving your boat idle for a longer pe-
riod, use the main switch to cut the electric cur-
rent. Also switch off the current when carrying out
electrical work.
If the main switch is retro-fitted, it should be
placed in an accessible location as close to the
battery as is practically possible.
Do not modify the boat’s electrical system or
its drawings. Modifications and servicing should
be left to a skilled professional in boat electrical
systems.
WARNING! Never use the main switch to cut the
current when the engine is running.
3.2 Battery hook-up and placement
Battery placement on Terhi boats are as follows:
Terhi Sea Fun and Terhi 400:
- Under rear seat (in battery housing or fitted
with terminal protectors)
Terhi 4110, Terhi Nordic 6020 C and Terhi 475:
- Inside the steering console
Terhi Nordic 6020 (without steering console):
- Under the rear seat in a space reserved for the
battery
The battery must be mounted securely in the
boat. This is best achieved using a fastening strap,
which is fixed by screws or pop rivets to the base
of the battery space. If the battery is located in
the same space as the fuel tank, it must be fitted
either with battery housing or terminal protectors.
Ensure that no electrically conductive items come
into contact with the battery’s positive terminal.
The mountings of the cable lugs must not be de-
pendent on spring tension.
WARNING! Charge the battery only using the
engine or a battery charger. Charging at an exces-
sive current causes a risk of explosion.

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3.4 Wiring diagrams
3.3 Control panel
The Terhi 4110, Terhi Nordic 6020 C
and Terhi 475 are all equipped with a
control panel as standard (figures 2,3
and 4).
Figure 2.
4110 control panel
Figure 3. Nordic 6020 C and 475
Open CC/FC control panel
Figure 4. 475 Twin C
control panel
Red
Main switch
Fuse 7.5A Nav lights switch Plug-in base
Black
Red
Black
To the
engine
White/red
12 V DC
outlet
Red/green
All-around
Figure 6. Terhi 475 wiring diagram
Figure 5. Terhi 4110 wiring diagram

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4 Maintenance and wint stage
Take your Terhi boat out of the water in good time be-
fore there is any chance that the water will freeze. Your
boat is not designed for use in ice-covered waters.
4.1 Washing and cleaning
Keep your boat clean and tidy. This enhances
comfort and safety and increases the boats re-sale
value. The fuel consumption of a motor boat is
significantly affected by the cleanliness of the hull
and engine parts beneath the surface of the water.
Usually the use of ordinary household detergents
and boat-wax is sufficient for taking care of the
3.5 Fuses
In the following models the fuses of the electri-
cal system are located inside the steering con-
sole: 4110 and Nordic 6020 C. In Terhi 475 the
fuses are located under the rear seat. The above
mentioned models have 7,5 A flat fuses with the
exception of Terhi 475, where automatic fuses of
10A and 15A are used. When changing fuses, do
not install one for a higher current or put com-
ponents into the electrical system with a nominal
ampere reading exceeding that of the
electrical circuit.
3.6 Navigation lights
The following Terhi boats have a readiness for
navigation lights (sockets pre-installed): Terhi Sea
Fun, Terhi 4110, Terhi Nordic 6020 and Terhi 475.
NOTE! In boats not equipped with a separate
switch for navigation lights (Sea Fun, 400 and
Nordic 6020), a fuse and switch should be in-
stalled before starting to use the system. Power
should be turned off whenever the lights are not
in use. The set of navigation lights, available as an
accessory, is CE-compliant.
Figure 7. Terhi Nordic 6020 C wiring diagram

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inner shell and sides of an ABS boat. The removal
of abrasions and difficult stains can be done us-
ing a fine polish. If the boat has been kept in the
water, wash the hull as soon as it has been lifted
out. Algae and slime are more easily removed if
they are not allowed to dry. You can use a brush
or wooden or plastic scraper to ease the work, but
avoid the use of a scratching metal scraper.
NOTE! Do not clean with acetone, thinner, petrol,
ketone or other strong solvents, as they may dam-
age the plastic surface.
4.2 Winter storage
The best place to store a Terhi boat in winter is in a
shed or under a roof. The best storage position for
a rowing boat is upside-down, resting on trestles
(figure 8).
For planing and console boats stored on trestles
or a trailer, ensure that the boat’s weight is evenly
distributed on its supports. Support surfaces must
be wide – for example a board lying flat is well-
suited to the purpose. When storing the boat on
a trailer, the fastening straps must be loosened.
If the engine is still mounted, its weight must be
supported. During the period of storage, heavy
loose items such as the battery and fuel tank
should be removed.
The Terhi 475 is also equipped with a bilge-
water drain plug, located under the plastic cover
beneath the tank. Bilge water can be drained
out here when the boat is dry-docked. Leave the
plug open during storage, so that any condensa-
tion water can drain away. Always keep this plug
closed when the boat is in the water.
If stored outdoors, cover the boat with a non-
transparent tarpaulin. Ensure, however, that the
boat has sufficient ventilation. When storing out-
doors, make sure that an excessive amount of
snow cannot accumulate on top of it. Storing a
Terhi boat on its side is not recommended.
NOTE! The tarpaulin and its fastening ropes will
chafe the surface of the boat if they flap and move
in the wind, so fasten them with care.
4.3 Engine and other equipment
Study the engine manual for instructions on win-
ter storage and servicing and the spring overhaul.
Have them done by a qualified service engineer
or, if you do it yourself, take the utmost care over
the task. Other equipment requiring regular serv-
icing includes:
- steering and engine control equipment
- navigation lights
- covers
- battery
Remove the batteries during winter storage,
store them in a cool dry place and charge them
at least twice during the winter. Spray electri-
cal connections with suitable anti-moisture and
anti-corrosion substances. Carry out servicing on
other equipment according to their manuals and
instructions.
4.4 Anti-fouling
In sea water, you can prevent vegetation and bar-
nacles from getting attached to the hull by ap-
plying anti-fouling paint. All light-coloured, hard
types of paint are suitable for Terhi boats. Careful-
ly observe the instructions provided by the manu-
facturer. You can find water-line measurements for
anti-fouling paint at TerhiTec Oy’s website (www.
terhi.fi).
4.5 Care and maintenance
Repair, or have repaired, any possible scratches
or dents, according to section 4.6. Small surface
scratches can be ignored as they do not adversely
affect the integrity of the boat. Washing and wax-
ing, as described in section 4.1 will help to keep
the boat clean and neat throughout the boating
season.
Figure 8.

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5 Transpt
Smaller Terhi boats can be transported by car on
a sturdy roof rack. Larger models should be trans-
ported on a purpose-built boat trailer.
5.1 Trailer transport
You can easily transport your Terhi boat on a trail-
er. Make sure, however, that the trailer is compat-
ible with your boat. Check that the load capacity
of the trailer is sufficient for your boat, its engine
and other equipment. Terhi boats are very light
for their length so ensure that your trailer is suffi-
ciently long to accommodate your boat. It should
have an adequate number of keel supports, and
load bearing supports and all these supporting
points must have a sufficiently large surface area,
so that point loads do not become excessive.
This is especially important on small roller trailers
where there are few rollers as standard.
During transportation, the engine must be in
the lower “trimmed down” running position.
Ensure, however, that there is sufficient ground
clearance below the bottom of the outboard skeg.
Check that the seat hatches are locked with their
security clips in place. Do not leave loose items or
excessive loads in the boat during transportation.
Fasten the boat securely to the trailer, before com-
mencing the actual journey but take care not to over-
tighten the fastening straps. The bow strap should
point forwards and downwards (the winch strap on
its own is insufficient for securing) and swaying of the
stern can be prevented by tying a strap across the
boat. To prevent the straps from marking the boat
use a soft material between the strap and the hull.
Adjust the trailer side supports or bunks, so that the
boat cannot move sideways. Clean all the supports
of sand and dirt, to prevent them scratching the hull.
Finally, check that the trailer is properly locked
to the trailer hook! Allways loosen the fastening
strap immediately after transportation and when
leaving the boat stored on the trailer.
Soiling of the hull and, in particular, the pro-
peller significantly increases fuel consumption, so
it also pays to keep them clean throughout the
boating season.
4.6 Repairs
For repairs covered by warranty, please see in-
structions in section 1.4. For faults in the engine or
other equipment, refer to the respective suppliers.
The ABS shells of Terhi boats can withstand hard
knocks. If, however, your boat suffers damage, it
can easily be repaired with Terhi Fix repair com-
pound, which is available from your Terhi dealer.
Instructions for use of the compound are provided
in the packet. Instructions for repair can also be
found at TerhiTec Oy’s website (www.terhi.fi).
Figure 9.
NOTE! If incorrectly done, retro-fitting and modi-
fication work can cause damage to the structure
of the boat or endanger safety. Contact the man-
ufacturer or dealer before commencing any sig-
nificant modification work, such as drainings or
larger surface fastenings.
NOTE! Always check the condition of your boat
immediately after a collision. If the inner or outer
shell of your boat has incurred damage that has
penetrated the plastic layer, it must be dealt with
immediately. Water penetrating through the in-
ner or outer shell can damage the structure of the
boat.

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NOTE! The trailer’s centre of gravity must be to-
ward the front. Make sure that the boat is securely
attached to the trailer. A swaying boat may strike a
single support point, damaging the hull. IMPOR-
TANT: The trailer’s keel supports should carry most
of the weight of the boat.
5.2 Using your boat for towing
When towing another boat, a buoyant rope of suf-
ficient strength should be used. Start the tow care-
fully and avoid jerking movements. Do not overload
the engine. When towing a rowing boat, remem-
ber that it is designed for slow speeds only. It is not
suitable for fast towing, as it will not plane.
Terhi boats have consecutive serial numbers, a
CIN (Craft Identification Number) code etched
into the right side of the stern under the fender
list. You will need this number when you insure,
register or sell the boat. Referring to this serial
number helps with the delivery of correct spare
parts and accessories. Check that the serial num-
ber on the warranty certificate corresponds to that
on the boat. Fill in the boat and motor details in
the boxes below for future reference.
6.1 General set-up, dimensions and capaci-
ties, design categories
Boat model:
Boat serial number (CIN code):
Engine model:
Engine serial number:
Design categories:
6 Technical specificatis
Category C This boat is designed for use in con-
ditions, in which the wind speed does not exceed
6 on the Beaufort scale (approx. 14 m/s) and the
swell is in proportion to that (significant wave
height does not exceed 2m, see note below).
Such conditions can be found in open lakes, river
estuaries and coastal waters in moderate weather
conditions.
Category D: This boat is designed for use in
conditions, in which the wind speed does not
exceed 4 on the Beaufort scale (approx. 8 m/s)
and the swell is in proportion to that (meaning a
wave height of max. 0.3 m, with occasional waves
reaching a height of 0.5m). Such conditions can
be found in sheltered inland waters and coastal
waters in good weather conditions.
Significant wave height is the average height
(trough to crest) of the highest 33% of waves over
an indicated 12 hour period, which roughly corre-
sponds to the height estimated by an experienced
observer. Some individual waves can be twice as
high as this.
WARNING! The towing rope is highly tensioned
when towing. If it breaks, the end of the rope can
reach dangerously high speeds. Always use a thick
enough rope, and avoid being in the vicinity of
the end of the rope.
5.3 Launching & Recovery
When launching and recovering your Terhi boat on
to its trailer ensure that the boat is empty of wa-
ter and luggage. Winch it carefully on to the trailer
avoiding excessive strain on the bow eye. Make
sure the trailers rollers and supports do not hit the
angled scupper plate that covers the drain hole as
the boat is winched on. Always release the tension
on the winch strap once the bow is resting on the
rubber bump stop. Never winch your boat on to
the trailer with people in the boat.

English
Terhi - Owner’s manual
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Terhi - Owner’s manual
12
Model Baby
Fun Sunny 385 400 400 C 440 Saiman Saiman
Sunwind Sea Fun Sea
Fun C 4110 Nordic
6020
Nordic
6020 C
475 Open
CC (FC)
475
Twin C
General set-up and seats based on the greatest passenger load Length (cm) 235 310 380 401 401 440 478 478 406 406 410 462 462 475 475
Width (cm) 130 147 150 150 150 175 148 148 167 167 172 187 187 185 185
Weight without engine (kg)
55 75 98 120 130 150 105 105 140 165 200 225 255 345
(355) 370
Passengers 2 3 4 4 4 5 4 4 4 4 4 5 5 5 5
Max. load (kg) (people + fuel)
175 240 315 315 315 405 315 315 330 330 330 405 405 405 405
Draft without load (m)
0,12 0,15 0,18 0,18 0,18 0,21 0,18 0,2 0,15 0,17 0,18 0,15 0,16 0,28 0,28
Freeboard without load (min)
0,35 0,34 0,39 0,27 0,27 0,34 0,31 0,29 0,32 0,3 0,46 0,62 0,61 0,55 0,55
Max kW/hp 2,3/3 3,7/5 4,5/6 7.4/10 7.4/10 7,3/9,9 2.9/4 Sähkö 11/15 15/20 22/30 22/30 22/30 45/60 45/60
Recommended engine power (hp)
2 4 4-6 6-10 6-10 4-6 2-4 2-4 8-10 10-15 20-30 10-15 20-30 50 50
Max. recommended engine weight (kg)
25 25 27 42 42 37 25 25 52 52 80 80 80 115 115
Max. speed with 2 persons (hp/Kn)
2/4 5/12 2/4
4/6 6/9,3
10/13,5 6/9,3
10/13,5 4/7
6/9 4/7 4 Kn 8/15
15/21 8/15
15/21 20/23
30/27 15/15
20/21 20/21
30/25 40/27
60/32 40/27
60/32
Shaft length short short short short short short short short short short long long long long long
Length of steering cable (m)
2,7 2,7 3,3 3,6 3,9 (4,9) 2,75
Length of remote control cable (ft)
7 7 7 12 14 (17) 10
Navigation light readiness
*******
Oars (ft) std. 6,5 std. 7,5 std. 8 std. 8,5 std. 8,5 std. 9 std. 8,5 std. 8,5 opt. 8 opt. 8 opt. 8 opt. 9 opt. 9
CE design category D D D D D D D D D C C C C C
Certificate number TER003 TER002 BTER017 BTER017 TER009 BTER010 BTER010 TER001 TER001 TER007 TER005 TER005 BTER014 TER008
Type of craft motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat motor-
boat
Type of hull monohull monohull monohull monohull monohull monohull monohull monohull monohull monohull monohull monohull monohull monohull
Construction material
plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic plastic
Type of main Propulsion
petrol-
engine petrol-
engine petrol-
engine petrol-
engine petrol-
engine petrol-
engine electric-
engine petrol-
engine petrol-
engine petrol-
engine petrol-
engine petrol-
engine petrol-
engine petrol-
engine
Type of engine outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard outboard
Rainwater draining * * * * * * * * * * * * * *

Terhi - Owner’s manual
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Terhi - Owner’s manual
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English
Manufacturer: TerhiTec Oy, 21140 Rymättylä, Finland
We declare that the below mentioned boats have been manufactured in conformance with
mentioned standards and the RSG Guidelines to meet the requirements of the European Union Directive
94/25/EC as amended by Directive 2003/44/EC.
Boat model / Certificate number CE category
TERHI SEA FUN / TER001 D
TERHI 385 / TER002 D
TERHI SUNNY / TER003 D
TERHI NORDIC 6020 / TER005 C
TERHI 4110 / TER007 C
TERHI 475 / BTER014 C
TERHI 440 / TER009 D
TERHI SAIMAN /BTER010 D
TERHI 400 / BTER17 D
Essential requirements ISO-Standards, Other normative document/ methods
Craft Identification Number – CIN ISO 10087:2006
Builder’s Plate ISO 14945:2004
Protection from falling overboard and
means of reboarding ISO 15085:2003
Visibility from the main steering position ISO 11591:2011
Owner’s manual ISO 10240:2004
Structure NBS 1990, RSG-guidelines
Stability and freeboard ISO 12217-3:2002 + A1:2009
Buoyancy and floatation ISO 12217-3:2002 + A1:2009
Openings in hull, deck and superstructure ISO 9093-2:2002, ISO 12216:2002
Flooding ISO 11812:2001, ISO 12216:2002, ISO12217-3:2002
Manufacturer’s maximum
recommended load ISO 12217-3:2002, ISO 14946:2001
Anchoring, mooring and towing ISO 15084:2003
Handling characteristics ISO 11592:2001
Electrical systems ISO 10133:2000
Steering systems ISO 8848:1993, ISO 9775:1994
Fire protection ISO 9094-1:2002
The stability, freeboard and buoyancy have been tested in accordance to certification module Aa.
Notified body number 0609: International Marine Certification Institute
Address: Rue Abbé Cuypress 3
B-1040 Brussels, Belgium
Rymättylä 1.10.2013
TerhiTec Oy
Jarmo Sundin, Managing Director
Declati of cfmity
CIN:
FI-TRH